1 Reply Latest reply: Nov 6, 2013 6:25 PM by WMortimer

    Maximum Elevation Figures (MEF) Issues

    SOS-GIS
      Hi,

      Concerning Joint Operations Graphics Series 1501A and 1501 (Edition 28 February 1995), based on the Maximum Elevation Figures formula (page 63), the result I calculated manually is different than the one I did through Arctoolbox �??Calculate Maximum Elevation Figures�?�.

      Which one do I have to follow?

      Regards,
      Mostafa Atir
        • Re: Maximum Elevation Figures (MEF) Issues
          WMortimer
          Hi There,
          I guess you are using the Toolbox in Production mapping to create your MEF Values.
          I would look at the MEF Quadrants that have differences ie say 6500 ft vs 6400 ft. Where there are differences you may want to consider flight safety aspects and the users of the JOG-Air etc. So in The case above you would use 6500 ft, that way the safety margin is increased slighty.
          The Mil standard (MIL-J-89100)  and (MIL-T-89101) do explain calcs you need for the MEF. I would have a look at Section 3.14.1 in Mil-T-89101. It explains the rounding and vertical errors quite well. Also look here:
          http://resources.arcgis.com/en/help/main/10.1/0109/01090000000r000000.htm